My 1.5 year old dog went to emergency for vomiting and diarrhea. Trupanion denied the claim as in my vet's notes she had had diarrhea as a puppy before she was covered that was so minor I didn't bring her in for it. She also had diarrhea twice since while covered. This time she had severe diarrhea as she had likely eaten garbage off the street. I wish I could leave Trupanion but it is hard because of other pre-existing conditions. I regret that I may need to stay with them. I've heard Desjardins is good and would like to switch.